Timeline of Eras in American History

      Three Worlds Meet, Beginnings to 1620

      Colonization & Settlement, 1585-1763

      Revolution & the New Nation, 1754-1820s

      Expansion & Reform, 1801-1861

      Civil War & Reconstruction, 1850-1877

      Development of the Industrial US, 1870-1900

      Emergence of Modern America, 1890-1930

      Great Depression & World War II, 1929-1945

      Postwar US, 1945-Early 1970s

      Contemporary US, 1968-Present